/*
	utils.js: Misc javascript utilities.
*/


/*
 * DOMParser HTML extension
 * 2012-02-02
 *
 * By Eli Grey, http://eligrey.com
 * Public domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK
 */

/*! @source https://gist.github.com/1129031 */
/*global document, DOMParser*/

(function(DOMParser) {
    "use strict";
    var DOMParser_proto = DOMParser.prototype
      , real_parseFromString = DOMParser_proto.parseFromString;

    // Firefox/Opera/IE throw errors on unsupported types
    try {
        // WebKit returns null on unsupported types
        if ((new DOMParser).parseFromString("", "text/html")) {
            // text/html parsing is natively supported
            return;
        }
    } catch (ex) {}

    DOMParser_proto.parseFromString = function(markup, type) {
        if (/^\s*text\/html\s*(?:;|$)/i.test(type)) {
            var doc = document.implementation.createHTMLDocument("")
              , doc_elt = doc.documentElement
              , first_elt;

            doc_elt.innerHTML = markup;
            first_elt = doc_elt.firstElementChild;

            if (doc_elt.childElementCount === 1
                && first_elt.localName.toLowerCase() === "html") {
                doc.replaceChild(first_elt, doc_elt);
            }

            return doc;
        } else {
            return real_parseFromString.apply(this, arguments);
        }
    };
}(DOMParser));


/*
Since new Browsers (IE9+) have trim() already implemented, you should only implement trim()
if it is not already available on the Prototype-Object (overriding it is a huge performance hit).
*/
if (!String.prototype.trim) {
	String.prototype.trim=function(){return this.replace(/^\s\s*/, '').replace(/\s\s*$/, '');};
	String.prototype.ltrim=function(){return this.replace(/^\s+/,'');}
	String.prototype.rtrim=function(){return this.replace(/\s+$/,'');}
	String.prototype.fulltrim=function(){return this.replace(/(?:(?:^|\n)\s+|\s+(?:$|\n))/g,'').replace(/\s+/g,' ');}
}